Horseshoe.



R. C. HAMJLTO.

.HoRsEsHoL APPLICATION FVIVLED MARZL 1917. I

3925556925; y mmm Jan. 29, 1918.

HoRsEsHoE.

Application lied March 27, 1917. Serial No. 157,689.

To all whom z't may concern.'

Be it known that I, lROBERT C. HAMIL- TON, a subject of the King 0f Great Britain, and a resident of Sangudo, Alberta, Dominion of Canada, have invented a new and Improved Horseshoe, of which the follow-v ing is a full, clear, and exact description.

My invention has for its object to provide a horseshoe having a detachable calk, there being an angular opening in the bottom of the horseshoe, and another opening'spaced therefrom so that an angular projection on the calk may be inserted in the angular opening. and the calk may be turned to move the! liprojection home, thereby disposing a second projection on the calk in position for insertion in the second opening in the horseT shoe, the calk being in position and the angular projection fitting theuangular opening snugly when the second projection is moved home in the second mentioned opening. When the two projections on the calk are in position in the openings in the horseshoe,

one of the projections is securedto the horseshoe to hold the calk in place.

Additional objects of the invention will' appear in the following specification, in

which the preferred form of the invention is disclosed.

In the drawings similar reference characters denote similar parts in all the views, in which- Figure 1 is'an inverted vplan view of a horseshoe provided with my invention;

Fig. 2 is a sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view on the line 3-3 -of Flg. 1

1Fig. 4 is a perspective view of the front ca k; v

Fig. 5 is a perspective view of one of the rear calks; and

. Fig. 6 is a fragmentary sectional view showing the under side of the front of the horseshoe.

By referring tothe drawings, it will be seen that the horseshoe 10 may be constructed in the usual manner, the front of.

these openings 11 angular in form so that after theyextend upwardly and rearwardly a predetermined distance from the lootton of the horseshoe, they will be disposed rear- Specification of Letters Patent.

PatentedJan. 29, 1918.

ing lugs or projections 16 are seated in the' `openings 11.- The said lugs or projections 16 extend u wardly and rearwardly for a distance, an' then rearwardly, so that when they are introduced into the openings'll, the ends of the lugs or projections will fit in the rear'ends 12 of the openings 11 when the lug or projection 14 on the calk 15 is inserted in the opening` 13. There is a horizontally extending orifice 17 in the lug or projection 14. this orifice lregistering with tapering` orifices 18 and 19 in the horseshoe 10 when the lug 14 is in position yin the opening 13. A tapered pin .20 is then introduced in the orifice 18, and is pushed l TEE STATES PATENT GFFTUE. i

through the orifice 17 and into the orifice 19, this means being provided for securing the calk 15 in position. It will be understood that when the pin 20 is withdrawn, the calk 15 may be removed and another vcalk may be substituted therefor.

Calks 21 at the rear of the horseshoe ar constructed -in a similar manner, but each ofthe calles 21 has only one .rearwardly extending lug or projection 16, which fits an opening 22 which extends upwardly and then rearwardly. as illustrated in Fig.v I

. tion 23, and through the `other orifice 25.

This means is provided for securing each of the rear calks 21 in place.

Having thus described my invention, I claim as new and desire to secure. by. Letters Patent:

A horse shoe having two openings in its bottom one behindthe other. one of the openings being curved upwardly and away from the other opening, a calk having two upwardly extending projections one of the projections being straight and theother being curved away from the rstraight pro- 

